> Over the years we didn't have AI. Maybe it will become abandonware; but maybe the development will keep up thanks to AI.

It has always been the case that open source lived and died thanks to developer attention. That hasn't really changed with AI. The amount 1 hour of developer attention can do is drastically greater. But if the developer loses interest (which may well happen after a year or two), the project still dies unless there's other people to steward it.

Hopefully that will be true. But it's really amazing how many established open source projects are basically supported by one person working tirelessly for years or decades on end.